If it was a horse

[mr_tony]

I would have had it humanely shot and boiled it down for glue.

But as it is an e65 7 series that I've had for 5 years I'm sentimentally attatched to the old barge, and like to keep it tip top even though it seems to cost an arm and a leg to do so...

Latest issue-PDC has failed. Assume it's a sensor. Anyone know how to determine which one is duff, or how to get the system diagnosed. My local specialist is really a merc guy and this is not his bag, and a main dealer visit is not what I'm up for...

I've done some searching and apparrently duff sensor 'click' or something, but if they do I can't hear them....

Cheers for any pointers..

[Cemesis]

Mine click, it sounds like interference on a speaker and is very faint. If you can hear it on all bar one then that's the dodgy one. Of course, this is for an E39 so not sure if the sensors on the E65 also click.

The alternative is that its the control module itself...(best not to say any more).

[Fox-]

Both of the last PDC sensor failures I've had on 2 different cars didnt fail in the usual way - ie not working. They began to register false positives. The only way to diagnose which one it was was to hook the car up to diagnostic software that shows you the reading from each sensor. A good indy can do this.

[mr_tony]

Thanks folks, I'll spend some time listening to the sensors and see if I can fund a duffer, and if not I'll go searching for a decent Indy in the area..